OSTEONICS RESTORATION HA HIP STEMS

K983870 · Osteonics Corp. · MEH · Dec 2, 1998 · Orthopedic

Device Facts

• Record ID: K983870
• Device Name: OSTEONICS RESTORATION HA HIP STEMS
• Applicant: Osteonics Corp.
• Product Code: MEH · Orthopedic
• Decision Date: Dec 2, 1998
• Decision: SN
• Submission Type: Special
• Regulation: 21 CFR 888.3353
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

The Osteonics® Restoration HA Hip Stems are single use components. They are intended for cementless fixation within the prepared femoral canals of patients requiring hip arthroplasty. The modified and predicate hip stems are intended to be used in conjunction with any commercially available Osteonics C-Taper femoral bearing head. For use as a total hip replacement, the modified and predicate stems may be used in conjunction with any legally marketed Osteonics acetabular component. The Osteonics® Restoration HA Hip Stems are manufactured from titanium alloy (ASTM F-620-96). The indications for the Osteonics® Restoration HA Hip Stems include the following: For Use as a Bipolar Hip Replacement: - Femoral head/neck fractures or non-unions. - Aseptic necrosis of the femoral head. - Osteo-, rheumatoid, and post-traumatic arthritis of the hip with minimal acetabular involvement or distortion. Other Considerations: - Pathological conditions or age considerations which indicate a more conservative acetabular procedure and an avoidance of the use of bone cement in the acetabulum. - Salvage of failed total hip arthroplasty. For Use as a Total Hip Replacement: - Painful, disabling joint disease of the hip resulting from: degenerative arthritis, rheumatoid arthritis, post-traumatic arthritis or late stage avascular necrosis. - Revision of previous unsuccessful femoral head replacement, cup arthroplasty or other procedure. - Clinical management problems where arthrodesis or alternative reconstructive techniques are less likely to achieve satisfactory results. Additional Indication for Osteonics Head/Neck Stems: - Clinical circumstances which require an altered femoral resection level due to a proximal fracture, bone loss, or calcar lysis.

Device Story

Osteonics Restoration HA Hip Stems are orthopedic implants for cementless fixation in femoral canals during hip arthroplasty. Modifications to existing predicate design include shortened trunnion, reduced stem neck diameter, 5mm reduction in neck length, and removal of distal tri-slot on 255mm stem. Device functions as mechanical support for femoral head; used by orthopedic surgeons in clinical/OR settings. Output is physical structural replacement of femoral component. Benefits include accommodation of patient physiology and restoration of joint function. Device must not be promoted for biological attachment or enhanced fixation; equivalence supported for mechanical interlock only.

Clinical Evidence

Bench testing only. Mechanical fatigue strength testing performed to demonstrate substantial equivalence to predicate stem designs.

Technological Characteristics

Titanium alloy (ASTM F-620-96) hip prosthesis. Cementless, press-fit design. Features include modified trunnion, neck diameter, and neck length; distal tri-slot removed on longest stem variant. Intended for use with Osteonics C-Taper femoral bearing heads and legally marketed acetabular components.

Indications for Use

Indicated for patients requiring hip arthroplasty due to femoral head/neck fractures, non-unions, aseptic necrosis, or arthritis (osteo-, rheumatoid, post-traumatic). Also indicated for salvage of failed total hip arthroplasty, revision of previous procedures, or clinical scenarios requiring altered femoral resection levels due to bone loss or proximal fracture.

Regulatory Classification

Identification

A hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis is a device intended to be implanted to replace a hip joint. This device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. The two-part femoral component consists of a femoral stem made of alloys to be fixed in the intramedullary canal of the femur by impaction with or without use of bone cement. The proximal end of the femoral stem is tapered with a surface that ensures positive locking with the spherical ceramic (aluminium oxide, A12 03 ) head of the femoral component. The acetabular component is made of ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene reinforced with nonporous metal alloys, and used with or without bone cement.

Predicate Devices

• Osteonics® Restoration HA Hip Stems

Submission Summary (Full Text)

{0}------------------------------------------------

Image /page/0/Picture/1 description: The image contains the words "Public Health Service" in bold, black font. The text is presented on a white background. The words are stacked on top of each other, with "Public Health" on the first line and "Service" on the second line.

Image /page/0/Picture/12 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized caduceus symbol, which is a staff with two snakes coiled around it. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" is arranged in a circular fashion around the caduceus symbol.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

**DEC - 2 1988**

Ms. Kate Sutton Regulatory Affairs Specialist Osteonics Corporation 59 Route 17 07401-1677 Allendale, New Jersey

K983870 Re: Osteonics Restoration HA Hip Stem Trade Name: Requlatory Class: II Product Code: MEH Dated: October 28, 1998 Received: November 2, 1998

Dear Ms. Sutton:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act). This decision is based on consideration of the specific design of stem and coating You may, therefore, composition detailed in this application. market the device, subject to the general controls provisions of the Act and the following limitation:

You may not label or in any way promote these devices for "biological attachment, enhanced clinical or radiographic performance, enhanced fixation and/or long-term stable fixation." The data presented support equivalence with no additional claims over a conventional press-fit hip prosthesis (i.e., mechanical interlock, only).

Additional limitations for more specific claims of safety and effectiveness may be forthcoming. Should additional limitations be applied you will be contacted in writing to inform you of the additional labeling limitations.

The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbrandinq and adulteration.

{1}------------------------------------------------

Page 2 - Ms. Kate Sutton

You may market your device under the above limitations as a rou may market your devices would be considered not substantially equivalent to a legally marketed predicate Substantially equivalens of a intended uses and/or claims of device in rabbits and other intended uses or claims may cause the device to be classified into Class III under may cause the defice of Class III devices are required to beceion sioned premarket approval (PMA) application prior to marketing.

Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to A substantially equivalent determination assumes 895. compliance with the current Good Manufacturing Practice compliation with the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part (QS) for Medical beviews. Sciences (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this your device in choremarket notification submission follow affect any obligation you might have under sections 531 arrest any obility of the Act for devices under the Electronic chrough 342 or the not on provisions, or other Federal Laws or Regulations.

This letter will allow you to begin marketing your device as Inis fected will affer your of your of the motification immediately. An FDA finding of substantial equivalence of your device to a rdi rimany in the may be results in a classification fegarly markive and permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at [phone]. Additionally, for questions on compriation and advertising of your device, please contact the Office of Compliance at [phone]. Also, please note ene regulation entitled, "Misbranding by reference to
premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be

{2}------------------------------------------------

Page 3 - Ms. Kate Sutton

obtained from the Division of Small Manufacturers Assistance obeathed from chomber [phone] or [phone] or at at fes coll free namber (s://www.fda.gov/cdrh/dsmamain.html".

Sincerely yours,

Celia M. Witten, Ph.D., M.D. Director Division of General and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

{3}------------------------------------------------

510(k) Number (if known): K 983870

Device Name: Osteonics® Restoration HA Stems

Indications For Use:

The indications for the use of the Osteonics® Restoration HA Stems , in keeping with those of other legally marketed Osteonics femoral components, are as follows:

For Use as a Bipolar Hip Replacement:

- Femoral head/neck fractures or non-unions. .
- Aseptic necrosis of the femoral head. ●
- Osteo-, rheumatoid, and post-traumatic arthritis of the hip with minimal acetabular ● involvement or distortion.

Other Considerations:

— — — — — —

- Pathological conditions or age considerations which indicate a more conservative acetabular ● procedure and an avoidance of the use of bone cement in the acetabulum.
- Salvage of failed total hip arthroplasty. ●

For Use as a Total Hip Replacement:

- Painful, disabling joint disease of the hip resulting from: degenerative arthritis, rheumatoid ● arthritis, post-traumatic arthritis or late stage avascular necrosis.
- Revision of previous unsuccessful femoral head replacement, cup arthroplasty or other . procedure.
- Clinical management problems where arthrodesis or alternative reconstructive techniques ● are less likely to achieve satisfactory results.

Additional Indication for Osteonics Head/Neck Stems:

- Clinical circumstances which require an altered femoral resection level due to a proximal . fracture, bone loss or calcar lysis.
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

| Prescription Use X<br>(Per 21 CFR 801.109) | OR | Over-The-Counter Use ______<br>(Optional Format 1-2-96) |
|--------------------------------------------|----------------------------------------------------------------|---------------------------------------------------------|
| | (Division Sign-Off)<br>Division of General Restorative Devices | |
| | 510(k) Number K783870 | |

{4}------------------------------------------------

**DEC - 2 1988**

K983870

# Special 510(k) - Device Modification Summary of Safety and Effectiveness for the Osteonics® Restoration HA Hip Stems

| Submission Information | |
|--------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------|
| Name and Address of the Sponsor<br>of the 510(k) Submission: | Osteonics Corporation<br>59 Route 17<br>Allendale, NJ 07401-1677 |
| Contact Person: | Kate Sutton<br>Regulatory Affairs Specialist |
| Date of Summary Preparation: | October 28, 1998 |
| Device Identification | |
| Proprietary Name: | Osteonics® Restoration HA Hip Stems |
| Common Name: | Hip Prosthesis |
| Classification Name and Reference: | Hip Joint, Metal/Ceramic/Polymer, Semi-Constrained, Cemented or Non-Porous Uncemented Prosthesis<br>21 CFR §888.3353 |

#### Predicate Device Identification

The modified features of the Osteonics® Restoration HA Hip Stems are substantially equivalent to features of the following Osteonics predicate devices, which have been cleared for marketing via the 510(k) process:

- · Osteonics® Restoration HA Hip Stems
# Device Description

The Osteonics® Restoration HA Hip Stems are currently marketed devices that are being modified. The modification involves shortening the trunnion and reducing the diameter of the stem neck. Additionally, the neck length of each stem will be reduced by 5mm to better accommodate patient physiology. All other aspects of the Osteonics® Restoration HA Hip Stems will remain unchanged, with the exception of one feature on the longest stem (255mm). This stem currently features a distal tri-slot, which will be eliminated on the new version of the stem.

{5}------------------------------------------------

# Intended Use:

The Osteonics® Restoration HA Hip Stems are single use components. They are intended for cementless fixation within the prepared femoral canals of patients requiring hip arthroplasty. The modified and predicate hip stems are intended to be used in conjunction with any commercially available Osteonics C-Taper femoral bearing head. For use as a total hip replacement, the modified and predicate stems may be used in conjunction with any legally marketed Osteonics acetabular component. The Osteonics® Restoration HA Hip Stems are manufactured from titanium alloy (ASTM F-620-96). The indications for the Osteonics® Restoration HA Hip Stems include the following:

For Use as a Bipolar Hip Replacement:

- Femoral head/neck fractures or non-unions.
- Aseptic necrosis of the femoral head. .
- Osteo-, rheumatoid, and post-traumatic arthritis of the hip with minimal acetabular involvement . or distortion.

Other Considerations:

- Pathological conditions or age considerations which indicate a more conservative acetabular . procedure and an avoidance of the use of bone cement in the acetabulum.
- Salvage of failed total hip arthroplasty. ●

For Use as a Total Hip Replacement:

- · Painful, disabling joint disease of the hip resulting from: degenerative arthritis, theumatoid arthritis, post-traumatic arthritis or late stage avascular necrosis.
- Revision of previous unsuccessful femoral head replacement, cup arthroplasty or other . procedure.
- Clinical management problems where arthrodesis or alternative reconstructive techniques are ● less likely to achieve satisfactory results.

Additional Indication for Osteonics Head/Neck Stems:

- Clinical circumstances which require an altered femoral resection level due to a proximal . fracture, bone loss, or calcar lysis.
# Performance Data:

Mechanical testing has been performed to demonstrate the substantial equivalence of this Osteonics stem design to predicate stem designs in terms of its fatigue strength.

# Statement of Technological Comparison:

All features of the Osteonics® Restoration HA Hip Stems will remain the same with the following exceptions: 1) The distal tri-slot on the longest stem will be eliminated, 2) the neck diameter on each stem will be slightly reduced and the neck length will be reduced by 5mm, and 3) the trunnion will be shortened slightly.